Enjoy Christmas 2026 in this spacious Family Home with a heated garage and loft, in a great location in Williamsburg! Check out this 4-bedroom, 3.5-bath home (with only a shower left to install in the basement bathroom) offering space, comfort, and incredible versatility, with room to grow! The detached heated garage with hydro and a loft makes the perfect man cave, workshop, or teen hangout. Located in the charming town of Williamsburg, you'll enjoy the convenience of being just a short drive to Highway 401, Morrisburg, Winchester, or Ottawa, an ideal location for commuters or families. Main Level - Welcoming Entry: Step up to the front deck and into a bright, spacious living room. Flexible Layout: A separate dining room on the opposite side is perfect for large family gatherings or entertaining friends. Eat-In Kitchen: Features a large island and patio doors leading to the back deck, ideal for outdoor entertaining. Additional Features: An updated 2-piece bath and a large mudroom for everyday convenience. Upper Level - Primary Retreat: Spacious primary bedroom with his-and-hers closets and a private 4-piece en suite. Additional Bedrooms: Three more bedrooms and another 4-piece bath complete this level. Lower Level-Ready to Finish: Includes a separate laundry area, storage space, and a family room with a 3-piece bath; just add a shower to complete it. Exterior & Extras-Detached Heated Garage: Equipped with hydro and a loft, ideal for hobbies, a games room, or extra storage. Large Backyard: Plenty of space for kids and pets to play. Numerous Updates: Many improvements throughout, including updates to the garage. This property offers great value, ample space, and a versatile layout, perfect for growing families or anyone who loves to entertain. Book your showing today
4 bedrooms, 3 bathrooms, about 2,000 sq ft, works out to roughly $241 per square foot. Chat with Zara if you'd like a deeper read on whether this detached fits your budget and timing.
Inside 12402 County Road 18 Rd
Every detail from the listing, in one place.
Type
Detached
Style
2-Storey
Living space
2000-2500 sq ftas stated on the listing
Parking
7 spacesYes garage
Basement
Full, Partially Finished
Features & systems
Parking & garage
Garage
Yes
Parking spaces
7
Interior
Basement
Full · Partially Finished
Lot & land
Lot size (sqft)
0.61
Listing & possession
Property style
2-Storey
Property class
Detached
12402 County Road 18 Rd Price & Sale History
Earlier listings of this property, list-price changes, and the most recent annual property tax on the listing.
For saleListedThis listingMLS® X14131398$482,888
Sourced from MLS®. Includes earlier listings of this property on record.
What's it worth?
How 12402 County Road 18 Rd Compares to the South Dundas Market
Zara compares it with recent sales of similar homes nearby. It's a guide, not an appraisal.
Independent mortgage broker · OAC · rates subject to change and underwritingMortgage Squad →
Referral disclosure: Summitly may refer you to Mortgage Squad Advisors, an affiliated mortgage partner. You are free to choose any lender or mortgage professional.
Monthly cost
Enter a rate to see the monthly cost
An estimate, not a quote. Utilities and insurance are extra.
Affordability calculator
Estimated monthly payment
$2,372
/mo
based on the purchase price of $482,888
$96,578 cash
$386,310 financed
$325,374 total interest
Principal54%$386,310
Interest46%$325,374
20% down · 25-yr amortization · 5.50% rate. Principal & interest only — taxes, condo fees, and insurance not included.
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Figures are Summitly estimates for illustration only — not from TRREB or the MLS® feed, and not a mortgage approval, appraisal, or financial advice.
Rental income potential
Est. monthly rent
low–high
Gross yield
rent × 12 ÷ price
Cap rate (est.)
net of tax + fees
Summitly AI estimate for discussion only — not from TRREB or the MLS® feed, and not an appraisal or investment advice. Yield and cap rate are derived from the estimated rent versus the asking price.
For homeowners nearby
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Mortgage financing is arranged through Mortgage Squad Advisors. Summitly is the technology platform that powers this site. Estimated values, AI insights, calculator results, and rental projections shown on this page are generated by Summitly and are not provided by, reviewed by, or sourced from TRREB, the MLS®, or the listing brokerage; they are not appraisals or opinions of value. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by the Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The Coldwell Banker® name and logo are trademarks of Coldwell Banker Real Estate LLC.
Similar homes for sale nearby in South Dundas
Other 3–4 bed homes for sale in South Dundas around $483K.
Average days on market55Homes sold in about 55 days on average.
Sale-to-list ratio94.6%On average, homes sold below asking.
Active listings99Homes for sale here right now.
Median vs prior 90 days+1.2%Compared with May 3 – Aug 1, 2026: prices up.
Based on 49 sales from Aug 1 – Oct 30, 2026 (35 in the prior 90 days). Aggregate MLS® figures for closed sales; individual sold prices are shown only to signed-in members.
Questions About 12402 County Road 18 Rd
How much is 12402 County Road 18 Rd listed for?
12402 County Road 18 Rd is listed at $482,888 (MLS® X14131398). Summitly updates the price as soon as the MLS® record changes.
Is $482,888 a good price for 12402 County Road 18 Rd?
Summitly rates it Excellent Deal: the asking price is 10% or more below Zara's estimate, an estimate built from recent sales in South Dundas. The rating is an automated opinion, not an appraisal; "What's it worth?" on this page shows how it is worked out. See Zara's estimate
Has the price of 12402 County Road 18 Rd changed?
No — 12402 County Road 18 Rd is still listed at its original asking price of $482,888.
How many bedrooms and bathrooms does 12402 County Road 18 Rd have?
12402 County Road 18 Rd has 4 bedrooms and 3 bathrooms, with about 2,000–2,500 square feet of living space. It is a detached home in South Dundas.
How much would the monthly mortgage be on 12402 County Road 18 Rd?
About $2,372 a month — principal and interest on $482,888 with 20% down ($96,578), a 25-year amortization and an assumed 5.5% interest rate. The mortgage calculator on this page lets you change the down payment, amortization and rate.
How does 12402 County Road 18 Rd compare with other homes in South Dundas?
Its asking price of $482,888 is about 15% above the median sold price in South Dundas over the last 90 days, $420,000, across 49 closed sales on the TRREB MLS®. A city median mixes every type and size of home, so the comparable sales on this page are the closer guide.
Has 12402 County Road 18 Rd been sold before?
Summitly has no earlier MLS® sale or lease of 12402 County Road 18 Rd on record from the last two years. Older records aren't shown under TRREB rules.
Where is 12402 County Road 18 Rd?
12402 County Road 18 Rd is in South Dundas, ON. Schools, transit, parks and shops nearby are under Location & lifestyle on this page.
How long has 12402 County Road 18 Rd been on the market?
1 day — 12402 County Road 18 Rd was listed on October 29, 2026.
What is the price per square foot of 12402 County Road 18 Rd?
About $193 to $241 per square foot: the asking price of $482,888 over the 2,000–2,500 sq ft the listing gives as its size range.
Does 12402 County Road 18 Rd have parking or a garage?
Yes — the listing gives 7 parking spaces. Garage: Yes.
Does 12402 County Road 18 Rd have a basement, and is it finished?
The listing describes the basement as: Full, Partially Finished.
